What is Symmetric Key Encryption? Symmetric key encryption is a type of encryption in which the same cryptographic key is used for both encryption and decryption. The requirement for this encryption method is that both parties need to have access to the cryptographic...
What is the Encrypting File System? The Encrypting File System is a technology that does data encryption at the file level. This technology enables transparent encryption of data so that it can protect confidential data from attackers who have gained physical access...
What is database encryption? Many times, sensitive data like credit card numbers, social security numbers, medical records, etc., are kept in a database. And we need to safeguard those data from data theft. Usually, to preserve data confidentiality in a database, we...
I think we all have heard the terms 'Full Disk Encryption' and 'Filesystem Level Encryption'. They protect us from data theft by encrypting data on disks. But how do they work, actually? How does full-disk Encryption differ from filesystem-level encryption? And which...
What is the Merkle Tree? When data is distributed across multiple hosts over a network and the data is transferred from one host to another, there should be some way to verify the integrity of the data stored in multiple nodes. For example, in BitTorrent, if we are...
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